Home / 91,356.05-126,066.17-50,517.78

Finding the Fourth Proportional to 91,356.05, 126,066.17 and 50,517.78

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Solution

The fourth proportional to 91,356.05, 126,066.17 and 50,517.78 is: 69,711.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,356.05 : 126,066.17 = 50,517.78 : x
  2. Step 2: Convert to fraction form
    91,356.05/126,066.17 = 50,517.78/x
  3. Step 3: Cross multiply
    91,356.05x = 126,066.17 × 50,517.78
  4. Step 4: Simplify right side
    91,356.05x = 6,368,582,695.05
  5. Step 5: Solve for x
    x = 6,368,582,695.05/91,356.05
  6. Step 6: Final answer
    x = 69,711.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.